Many Lives is the first chapter of the Inuyashiki manga series. It released on February 18, 2014.
Ichiro Inuyashiki and his family move in to a new house. Few days later, he adopts a female dog at an animal shelter. His happiness goes away when he learns that he only has three more months to live before cancer kill him. As he is crying in the park, an unidentified flying object explodes near him.